EP0120700A1 - Dispositif automatique de mise en forme de bobines de fil - Google Patents

Dispositif automatique de mise en forme de bobines de fil Download PDF

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Publication number
EP0120700A1
EP0120700A1 EP84302056A EP84302056A EP0120700A1 EP 0120700 A1 EP0120700 A1 EP 0120700A1 EP 84302056 A EP84302056 A EP 84302056A EP 84302056 A EP84302056 A EP 84302056A EP 0120700 A1 EP0120700 A1 EP 0120700A1
Authority
EP
European Patent Office
Prior art keywords
package
yarn
shoulders
degrees
shaping elements
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP84302056A
Other languages
German (de)
English (en)
Other versions
EP0120700B1 (fr
Inventor
Herbert Clinton Merritt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of EP0120700A1 publication Critical patent/EP0120700A1/fr
Application granted granted Critical
Publication of EP0120700B1 publication Critical patent/EP0120700B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • This invention relates to cylindrical-bodied yarn packages wherein the yarn is traverse wound in layers of helical coils on a yarn package support. More particularly it relates to an apparatus and method for shaping such packages after they are wound to improve their formation and stability.
  • packages are commonly formed by windups employing a surface drive.
  • the drive roll is operated at a constant speed thus maintaining a constant surface velocity of the driven package despite the growth of the package as the filament material is wound thereon.
  • a cam-actuated reciprocating traverse guide may be used to lay the yarn onto the package support in layers of helical coils either directly or by means of a print roll.
  • mechanically shaping the opposed shoulders of a cylindrical yarn package having lips formed on the shoulders during winding is accomplished by rotating the package about its central axis and applying pressure to both shoulders simultaneously with an apparatus that comprises a base, a pair of driven rollers rotatably mounted to the base for rotating a yarn package supported thereon, and a pair of rotatable elongated shaping elements mounted to the base for movement into and out of contact with a point on the opposed shoulders of the yarn package.
  • the shaping elements are positioned so that their longitudinal axes are at an angle of from about 5 degrees to about 65 degrees with respect to a radius of the package extending to the contact point of the shaping elements with the shoulders of the package.
  • the driven rollers are spaced from each other in substantial parallelism and each are driven by a motor at about 50-100 revolutions per minute.
  • a suction nozzle is positioned below the rollers within the space between the rollers to locate a loose lead end of yarn on the package.
  • the shaping elements are conical with a cone angle of from about 15 to about 20 degrees and apply a force having a component directed toward the shoulder of the package.
  • a force of from 1/4 to 3/4 pounds is sufficient; however, means are provided to increase or decrease this force if desired.
  • the shaping apparatus chosen for purposes of illustration is denoted generally as 10 and includes as major components, a base 12, a pair of substantially parallel drive rollers 14. 16 rotatably mounted to the base and driven by motors 18. 20, connected to a power source (not shown) by leads 18a, 20a respectively, a pair of elongated shaping elements 22. 24 contacting a point 25 on the shoulders of Lycra® Spandex Fiber packages 26.
  • a suction nozzle 28 which may be adjustable to place it close to package 26 so when a vacuum is applied to the nozzle the free lead end of the package will be picked up by the nozzle and located for securing by subsequently tying around the yarn package. Without the vacuum nozzle pickup an inordinate amount of time is required for an operator to find free ends particularly on light denier yarn packages.
  • the elongated shaping elements 22, 24 are conical in shape with a cone angle A (FIG. 2) of up to about 30 degrees (15-20 degrees being a preferred range) and generally are about 1-1/2 inches (3.81 cm) long with a 1/2 inch (1.27 cm) base.
  • the longitudinal axis C of the shaping elements makes an angle B with the radius R of the package 26. Radius R extends to the point of contact 25 of the shaping element 22 with the package.
  • This angle B is known as the cant angle and has an operable range of from about 5 degrees to about 65 degrees.
  • the included angle D (FIG. 3) between the surfaces of the conical shaping elements 22. 24 at their points of contact (25) with the shoulders of package 26 is known as the divergence angle and has an operable range of between 10 degrees to 65 degrees with the preferred range being between 35 and 50 degrees.
  • the shaping elements are all mounted to a bar 11 supported by arms 13. 15 which are pivotally mounted to base 12 at pivots 17.
  • Each conical roller is rotatably mounted in a mounting block, e.g., 22a, 24a which in turn is fastened to bar 11.
  • packages 26 of Lycra@ Spandex Fiber normally wound on a bobbin or package support 27 have a profile in cross section as shown in FIG. 4 where a bulge or a lip 29 appears.
  • a plurality of packages 26 of the same size which are all doffed from the same spinning position are stocked to the shaper 10.
  • the bar 11 carrying the shaping elements is pivoted back out of the way for stocking packages.
  • all packages will be the same width and diameter; however, to accommodate wider yarn packages, shaping elements 32, 34 now pointing upward may be positioned downward by repositioning bar 11 which is fastened to arms 13. 15 by bolts 13a, 15a.
  • the packages are in contact with driven rollers 14, 16 which are rotating at about 50-100 revolutions per minute and the shaping elements 22, 24 are simultaneously brought into contact with a point (e.g., 25) on the shoulders of the package and the shaping elements then apply a force of from about 1/4 to about 3/4 lbs to the shoulders of the package 26.
  • the shaping operation continues for about 1-2 revolutions of the package and during this time the yarn in the lip area is moved inwardly and the package shoulder is more contoured as shown in the profile cross-section of package 26 1 in FIG. 5.
  • the packages are more stable when the lip 29 has been reshaped in that the propensity for yarn to fall off the shoulder of the package is reduced.
  • a vacuum is applied to nozzle 28 and the packages are rotating, the free lead end of each package is picked up by the nozzle. With the free end of each package thus located it can be quickly tied around the package surface to facilitate use by the ultimate user of the package.
  • the force on the package shoulders is changed by the addition of counterweights.
  • Their function can readily be explained in the context of FIGS. 2 and 3.
  • One rod 17a is about 2 inches inboard of pivot 17. i.e., toward the shaping rollers. Weights are hung on this rod to increase the force on the package shoulders.
  • the other rod 17b is about 2 inches outboard of pivot 17. Weights are hung on this rod to decrease the force on the package shoulders.
  • FIG. 6 While the foregoing invention represents an improvement in the art, a still further improvement may be effected in another embodiment shown in FIG. 6. Comprising the use of a driven lead screw 30 mounted to base 12' to adjust (raise or lower) the position of element 11' carrying the shaping elements 22', 24 1 and 32', 34 1 . This permits a fine adjustment to accommodate varying package sizes and is easily automated for more effective operation.
  • Spandex yarns are defined by the FTC as a manufactured fiber in which the fiber forming substance is a long chain synthetic polymer comprised of at least 85% of a segmented polyurethane.

Landscapes

  • Filamentary Materials, Packages, And Safety Devices Therefor (AREA)
  • Winding Filamentary Materials (AREA)
EP84302056A 1983-03-28 1984-03-27 Dispositif automatique de mise en forme de bobines de fil Expired EP0120700B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US479737 1983-03-28
US06/479,737 US4465241A (en) 1983-03-28 1983-03-28 Apparatus and method for shaping a wound yarn package

Publications (2)

Publication Number Publication Date
EP0120700A1 true EP0120700A1 (fr) 1984-10-03
EP0120700B1 EP0120700B1 (fr) 1987-02-04

Family

ID=23905211

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84302056A Expired EP0120700B1 (fr) 1983-03-28 1984-03-27 Dispositif automatique de mise en forme de bobines de fil

Country Status (5)

Country Link
US (1) US4465241A (fr)
EP (1) EP0120700B1 (fr)
JP (1) JPS59177255A (fr)
BR (1) BR8401387A (fr)
DE (1) DE3462325D1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5806775A (en) * 1996-07-16 1998-09-15 Owens-Corning Fiberglas Technology, Inc. Self-supporting yarn package
US5853133A (en) * 1996-07-16 1998-12-29 Owens Corning Fiberglas Technology, Inc. Apparatus for producing square edged forming packages from a continuous fiber forming process
US5839678A (en) * 1996-07-16 1998-11-24 Owens-Corning Fiberglas Technology, Inc. Method of controlling flat spots in a zero twist yarn
US6019140A (en) * 1996-07-16 2000-02-01 Advanced Glassfiber Yarns, Llc Method of weaving a yarn having periodic flat spots on an air jet loom
JP2000515589A (ja) * 1996-07-16 2000-11-21 オウェンス コーニング ストランド
US5756149A (en) * 1996-07-16 1998-05-26 Owens-Corning Fiberglas Technology, Inc. Method and apparatus for lubricating continuous fiber strand winding apparatus
US5731084A (en) * 1996-07-16 1998-03-24 Owens-Corning Fiberglas Technology, Inc. Zero twist yarn having periodic flat spots
US5690150A (en) * 1996-07-16 1997-11-25 Owens-Corning Fiberglas Technology, Inc. Woven fabric made with a yarn having periodic flat spots
US7156288B2 (en) * 2003-10-23 2007-01-02 Dvp-Digital Video Postcards Inc. Laminated disc envelope with postcard appearance

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1591020A (en) * 1925-11-02 1926-07-06 Plymouth Cordage Co Ball of binder twine and apparatus for producing the same
FR1094202A (fr) * 1954-03-03 1955-05-16 Procédé de formation de corps de bobinages

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US480158A (en) * 1892-08-02 Method of winding cops or balls
US2025920A (en) * 1934-08-03 1935-12-31 Viscose Co Method of preparing yarn packages to facilitate unwinding
US2618015A (en) * 1951-01-12 1952-11-18 Gaston County Dyeing Mach Apparatus for upsetting the ends of packages of yarn
US2674215A (en) * 1952-04-03 1954-04-06 Heminway & Bartlett Mfg Co Thread bobbin
US2857113A (en) * 1953-11-03 1958-10-21 Reiners Walter Dr Ing Suction nozzle for catching thread ends
GB1116538A (en) * 1964-08-17 1968-06-06 Reiners Walter Improvements in or relating to textile machines
US3371877A (en) * 1965-05-14 1968-03-05 Owens Corning Fiberglass Corp Method for packaging multistrand roving
US3498550A (en) * 1965-05-14 1970-03-03 Owens Corning Fiberglass Corp Apparatus for forming,processing and packaging multi-strand roving
GB1143762A (fr) * 1965-05-14
US3365145A (en) * 1965-05-14 1968-01-23 Owens Corning Fiberglass Corp Filamentary roving package
US3652025A (en) * 1970-02-02 1972-03-28 Leesona Corp Bobbin processing
FR2182381A5 (fr) * 1972-04-28 1973-12-07 Saint Gobain Pont A Mousson
US3801032A (en) * 1972-05-15 1974-04-02 Owens Corning Fiberglass Corp Apparatus for packaging strand
US4377262A (en) * 1981-03-09 1983-03-22 Windings, Inc. Two-way collapsible mandrel with winding compression

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1591020A (en) * 1925-11-02 1926-07-06 Plymouth Cordage Co Ball of binder twine and apparatus for producing the same
FR1094202A (fr) * 1954-03-03 1955-05-16 Procédé de formation de corps de bobinages

Also Published As

Publication number Publication date
JPS59177255A (ja) 1984-10-06
DE3462325D1 (en) 1987-03-12
BR8401387A (pt) 1984-11-06
JPH0364423B2 (fr) 1991-10-07
EP0120700B1 (fr) 1987-02-04
US4465241A (en) 1984-08-14

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